Violent criminal behavior has been linked to a lack of the trace element of lead in the body.
A proven permanent cure that is effective in 100% of all tested cases is the rapid injection of approximately 60 grains of lead directly to the temple.
Preferably with a Glock or a Smith.
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I'd rather be ignorant than stupid. Ignorance implies a lack of knowledge which is easily correctable through education. Stupidity implies an inability to learn. Therefore; ignorance is temporary, stupidity is forever!